News tagged with heart

Related topics: heart attack , heart failure , heart disease , heart muscle , patients

Rare gene mutations raise risk of early heart attack

A team of investigators from the Broad Institute, Massachusetts General Hospital and other leading biomedical research institutions has pinpointed rare mutations in a gene called APOA5 that increase a person's ...

Dec 10, 2014
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Racial and ethnic disparities narrow for acute care

A study of more than 12 million acute care hospitalizations over a five-year span found that as quality improved on each of 17 measures so did racial and ethnic equity. Nine major disparities evident in 2005 ...

Dec 10, 2014
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Lifestyle the key to gap in cardiac patient outcomes

Patients suffering from the world's most common heart rhythm disorder can have their long-term outcomes significantly improved with an aggressive management of their underlying cardiac risk factors, according to University ...

Dec 10, 2014
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Heart

The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."

The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.

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